Presentations by Wayne Bates
Matches: 11
Improvements in Spiral Wound RO Membrane & Element Construction for High Fouling Feed Water
This paper introduces improvements in both reverse osmosis (RO) and nanofiltration (NF) membrane polymer chemistry and in spiral wound RO/NF element construction. These improvements are focused on reducing the rate of fouling in high fouling feed waters while enhancing the quantity and quality of permeate water that can be economically produced. Th...
Introduction to Nanofiltration and Reverse Osmosis
A general overview of nanofiltration and reverse osmosis water treatment technologies. Topics include feedwater and peremeate water quality, membrane and pressure vessel assembly construction as well as membrane fouling and data normalization...
Brackish Water RO and NF Operation on High TDS Feed Waters
An increasing number of brackish water RO (Reverse Osmosis) and NF (Nanofiltration) systems are being designed and operated on high salinity feed water sources which can range from 2,000 to 10,000 mg/l TDS (Total Dissolved Solids). Increased feed TDS can dramatically impact the design of the RO/NF in terms of hydraulic design, feed pressure require...
Limits of Energy Savings in Seawater Reverse Osmosis
This paper will explore the other practical issues that can arise when very high permeable SWRO membranes are used. One example is the flux imbalance that can occur in a pressure vessel. It is not unusual for the net driving pressure of the feed end to result in flux rates which differ by a factor of 10 times from the first to last element in the v...
Energy Reduction at a Municipal Water Plant in Florida using New RO/NF Membrane Technology
After 13 years of operation at Palm Beach County, FL, the nanofiltration elements were replaced with a hybrid nano/RO system that resulted in an energy savings of 30% while maintaining permeate quality....
Introduction to Membrane Treatment
This presentation will introduce the spectrum of membranes used in home, municipal, and industrial applications. The membranes types will be reverse osmosis, nanofiltration, ultrafiltration, microfiltration, and membrane bioreactors. We will highlight the attributes of each membrane type ranging from what is rejected to the pressures required to ac...
Introduction to Membrane Treatment
This presentation will introduce the spectrum of membranes used in home, municipal, and industrial applications. The membranes types will be reverse osmosis, nanofiltration, ultrafiltration, microfiltration, and membrane bioreactors. We will highlight the attributes of each membrane type ranging from what is rejected to the pressures required to ac...
Membrane Design and Troubleshooting Basics: MF/UF
There will be a review of MF and UF membrane products in the market and how they are used. This will include an overview of Preventative Maintenance, Troubleshooting, Module Maintenance, and Module Replacement. A knowledge of how, when and why MF/UF foul and a set of good maintenance procedures, membrane modules can be quickly repaired and returned...